Oil & Gas
| Sun 09 Aug 2026
Beijing, Aug. 10 -- China Petroleum Logging Co Ltd and China National Petroleum have sought patent for Movable Well Site Rock Sample Conveying System and Using Method Thereof. This invention was developed by Cheng Gang, Wang Erpeng, Li Yanming, Jia Hongbo, Liu Yue, Zhang Dingjie, Yuan Boyang, Ma Li, Wang Hui, Jia Zhanjun, Chen W..